added more Python modules

var/spack/packages/hdf5/package.py

var/spack/packages/py-basemap/package.py

var/spack/packages/py-biopython/package.py

var/spack/packages/py-gnuplot/package.py

var/spack/packages/py-h5py/package.py

var/spack/packages/py-matplotlib/package.py

var/spack/packages/py-mpi4py/package.py

var/spack/packages/py-mx/package.py

var/spack/packages/py-pil/package.py

var/spack/packages/py-pmw/package.py

var/spack/packages/py-pylint/package.py

var/spack/packages/py-rpy2/package.py

var/spack/packages/py-scientificpython/package.py

var/spack/packages/py-scikit-learn/package.py

var/spack/packages/py-sympy/package.py